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https://issues.apache.org/jira/browse/YARN-5561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15483258#comment-15483258
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Varun Saxena commented on YARN-5561:
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bq. are looking for a complete applications page where all applications which
were running/completed had to be listed. For this purpose, I think we need the
api as suggested by Rohith. Being said this, We will also be showing hierarchy
from flows too.
So you plan to have 2 app pages. One from a specific flow run and other a list
of all the apps in a cluster. Right ?
[~rohithsharma], how do you plan to support fetching all apps within a cluster ?
Probably you can adopt the approach I had suggested. Because otherwise it would
lead to full table scan.
bq. New API's required. Thoughts?
We should have them for the sake of completeness.
> [Atsv2] : Support for ability to retrieve apps/app-attempt/containers and
> entities via REST
> -------------------------------------------------------------------------------------------
>
> Key: YARN-5561
> URL: https://issues.apache.org/jira/browse/YARN-5561
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelinereader
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Attachments: YARN-5561.patch, YARN-5561.v0.patch
>
>
> ATSv2 model lacks retrieval of {{list-of-all-apps}},
> {{list-of-all-app-attempts}} and {{list-of-all-containers-per-attempt}} via
> REST API's. And also it is required to know about all the entities in an
> applications.
> It is pretty much highly required these URLs for Web UI.
> New REST URL would be
> # GET {{/ws/v2/timeline/apps}}
> # GET {{/ws/v2/timeline/apps/\{app-id\}/appattempts}}.
> # GET
> {{/ws/v2/timeline/apps/\{app-id\}/appattempts/\{attempt-id\}/containers}}
> # GET {{/ws/v2/timeline/apps/\{app id\}/entities}} should display list of
> entities that can be queried.
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